KP161 Lecture Notes - Lecture 2: Information Processing, Cocktail Party, Tennis Ball

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Process by which meaning is attached to sensory information. Two approaches for explaining the nature of perception. If the action is correct or not. Action possibilities of the environment/task in relation to the perceiver"s capabilities. Perception of the environment/task in terms of the actions the perceiver can potentially exert on it. View the relationship between perception and action as circular. Reaction time (rt): brief time lag between (1) the moment when a stimulus is presented and (2) the initiation of a response. Choice rt is logarithmically related to the number of response choice alternatives. Interval between the initiation of the movement and its completion. Measured from moment stimulus presented to response completion (rt+mt) Increased uncertainty lead to delayed or inaccurate responses (hick"s law) Practitioners should be aware of strategies that can reduce uncertainty. Reduce number of possible response alternatives the help witt skill learning.

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